I think that recognising it’s there is the first part because otherwise you could end up acting bitter without even realising it. It’s natural to have the jealousy monster in the back of your head when things are shitty for you and going well for those around you because you deserve happiness and less of the crap you have to deal with. I don’t know about turning it off… but perhaps just admitting it to yourself, digging deep to remember that you are happy for your loved ones and friends and the world around you while trying to remember some of the things you’re grateful for too (easier said than done on the dark days, admittedly).x